@name yt {
  @b screen {
    height: 40px;

    @e header {
      position: relative;
      width: 100%;
      display: flex;
      text-align: center;
      height: 40px;
      line-height: 40px;
      font-size: 14px;
      background: #ffffff;
      z-index: 101;
      border-bottom: 1px solid #f2f4f6;
    }

    @e panels {
      position: absolute;
      top: 40px;
      left: 0;
      right: 0;
      z-index: 100;
      height: 240px;
      overflow: hidden;
      background: #ffffff;
      transition: transform .3s cubic-bezier(0.23, 1, 0.32, 1);
    }

    @e panel {
      width: 100%;
      height: 100%;
    }

    @e mask {
      position: absolute;
      top: 40px;
      bottom: 0;
      left: 0;
      right: 0;
      z-index: 100;
      background: rgba(0, 0, 0, 0.5);
      transition: opacity .3s cubic-bezier(0.23, 1, 0.32, 1);
    }

    @e item {
      flex: 1;
      color: #666666;
      @when active {
        color: #000000;
      }
    }

    @e icon {
      display: inline-block;
      margin-left: 5px;
      font-size: 12px;
      color: #666666;
      transition: transform .3s cubic-bezier(0.23, 1, 0.32, 1);
      @when active {
        position: relative;
        color: #000000;
        top: -2px;
        transform: rotate(180deg);
      }
    }
  }
}
